Flush valve



' Feb. 20, 1923.

Fi 1 ed Mar.

y INVENTR Mw E, mi?

WTTORNEYS,

w 1||||l| IIMIIIIIHW Patented Febr, lll, i323.

rimossi vanvn.

Application led March 18, 1922. Serial No. 54s,'80.

To all whom t may concern:

Be it known that l. ARTHUR E. Bninnio'r, a citizen. of the United States?v residing at South Norwalk, county of Fairfield, State especially designed for use in flush tanks for water closet basins.

lt is an object of the invention to provide a simple and durable valve and outlet mechanism for flush tanks which will be reliable and positive in operation,

lt is a further object of the invention to providea valve and valve mechanism of this type which will have means for retaining the valve in its open position until the tank has become emptied and will then insure the closing of the valve.

lt is a still further object of the invention to provide an improvedi simple, and easily manufactured valve for this type of mechanism which will last indefinitely.

lWith these and other objects iu view, i have devised the constructions illustrated in the accompanying drawing, in which Fig. 1 is a sectional view through one forni of my device.

Fig. 2 is a similar view through aslight modification, and

Fig. 3 is a transverse section through the valve.

Reference numeral 5 indicates a water tank, especially a` flush tank for water closet basins, which is usually lined with sheet metal indicated at 6. Extending through the bottom thereof is the outlet lixture 7 mounted in any suitable manner, preferably having a flange 8 resting on suitable packing 9 and clamped in position by means of a nut 10. rlhe connection from the outlet to the basin is not shown. This outlet is provided with the usual horizontally extending valve seat 11 upon. which the valve 12 is adapted to seat. Extending laterally from the outlet, below its seat, is a tubular connection 123 which tubular connection extends upwardly within the tank to a point above the liquid level therein when the tank is filled and then downwardly to a pos'tion adjacent thelevel of the valve seat 11, and communicates with the tank at this level. rl`his level is preferably slightly above 'the top surface of the ing member outlet. l have disclosed, in Figures 1 and 2, two slightly different constructions of this upwardly and downwardly extending connection. ln Fig. 1. l have employed two cencentric tubes 1l and 15,1the inner tube being connected at its lower end to the connection 13 from the outlet and open at its upper end within the outer tube which is closed its upper end and open at its lower end 1st. at a level slightly above the outlet. The outer tube is spaced from the inner tube by any suitable means such as set. screws 16 at its lower end and horizontally extending pins 17 at its upper end.

Located above the outlet, is a supporting member 13, preferably dome shaped or inverted cup shaped. and provided with a seat 1,9 opposed to the seat 11 and in which the upper surface of the valve 12 is adapted to seat. A tubular connection 20 leads from this support, above its seat, to the outer tube 15 between the ends thereof as indicated ln the form shown in Fig. 27 instead. of having the tubes concentric5 .l have placed them. laterally of each other. the two sections being indicated at 21 and 22, the section 21 being connected to the lateral connection 13 the same as tubelll in 1 while the tube 22 is connected to the tube 21 at. its upper end, as shown at 23. extends downwardly and opens to thetank at point 24 slightly above the top of the outlet, the same as outer tube 15 in the form shown in Fig. 1. rlhe tubular connection 2O from the support- 18 is connected to the tube 22 between its upper and lower rends as shown at 33 the same as it is connected to the outer tube 15 inthe form shown in Fig. 1` Both formshave the usual water supply pipe 25 and 26, discharging into the tube 1l in Fig. 1, and 21 in Fig. 2 to ll the trap inthe usual manner after the basin has been flushed.

y My improved valve 1.2 is preferably coinposed of light ksheet metal, such aluminum? and comprises ya substantially dome shaped member, as illustrated. open at its lower end, as shown at 27, the diameter of this opening being less than the greatest diameter of the valve so that the sides there of extend inwardly, as shown at 28, below this greatest diameter. Connected to the top of the valve. by any suitable means, is a lifting rod 29 extending through a suitable tra guide and may be connected at its upper end to the usual operating mechanism, a connection from which is indicated at The operation is as follows:

'lhe tivo different modifications shown operate eiiactlj,7 the same and the tank is filled with Water to the level substantially shown, this level being about at the level of the connection of tube le; with tube l5, and from tube 2l to tube 22. Upon lifting of the valve 12 from its seat, as it is iilled With air,

it will rise and seat in the seat 19 of supporting member 18, the buovr-ncy Aof the Water raising it to this position if it is not lifted thereto by the operator. As the Water flows out the outlet, the syphonic action of he column of Water therein creates a suction in the pipes la, l5 and 20 in the forni shown in l and in pipes 2l, 22 and 20 in the, forni shovvn in 2, and causes wat r to flow in at the lower open ends of the pipes l5 und 2, past the connections 32 andBB to these pipes of tube :2O from the supporting member i3, thus creating a partial vacuum in 'this member above the valve and supporting the saine against the valve seat 19 until the level of the Water in the tank reaches the loiver ends of the pipes l5 and 22, when air enters the tubes breaking the suction or partial vacuum above the valve allowing it to drop to the lower valve seat ll. It vvill be apparent from this that there is positive ineens for holding the valve elevated until the tanl: has been emptied or lthe liquid therein has r ached a certain definite level7 when the valve is automatically released and may move to closed position. The improved valve construction is much more durable than the old type of rubberball besides being much lighter which is of special advantage in use with the specific suction holding'means described, besides being simpler in construction than the rubber ball, and being easier and cheaper to manufacture.

Having thus described the nature of my invention, what l claim is:

l. A device of the character described comprising an outlet, a valve for closing trie entrance to said outlet, an inverted cupped member spaced above said outlet and adapty ed to receive said valve, an upivardlvT extending tube communicating with said outlet bey low the valve, a tube leading from the upper portion kof said pipe downwardly to a level a short distance above the level of the entrance to the outlet and open at its lower end, and a tube leading from the cupped member to and communicating with the latter tube intermediate its ends.

2. An outlet valve mechanism for liquid tanks comprising an outlet having a valve seat, a valve for said seat, a lateral branch level therein, inverted cupped memberw.'

above the valve in ivhich thevalve is adapted to seat, a tubular connection from said cup to said lateral branch above its open lower end, and means for lifting the valve from its seat.

3. fin outlet valve mechanism for liquid l i comprising an outlet having valve seat, a valve for said seat, means for lifting the valve ironi its seat. a supporting ni'einber above said valve provided With a seat for the upper portion thereof, a connect-ion from the outlet beloiv its seat to the support above its seat whereby a partial vacuum is: produced in said supportby the suction pro* duced by the syphonic action of ther liquid flowing through said outlet, and means in t f' for breaking the syphonic action after the -tanl'' is dscharged.

in outlet valve mechanism for liquid elfe comprisingY an outlet having 'a valve s a valve fo. said seat, means for lifting the-valve fr in its seat, a supporting inember above said valve provided With a seat for the upper portion thereof, a connection from. the outlet belov.7 its seatto the support above its seat whereby a. partial vacuum is produced in said support b v the suction producerl by the sjvphonic action 'of the liquid through said outlet, and a connection from the tanlr beloiv the normal liquid level therein to said first connection.

jiu outlet valve mechanism for liquid tanks comprising an outlet having a valve seat, a valve for said sea-t, a supporting meinber above said valve provided Withy a seatfor the upper portion thereof, a tubular vconnectio*L from the outlet belovv itsseat to said supporting member above its seatja connection from the said tubular connection'tofthe tanl; at a level adjacentthe level'of'th'e entrance to said outlet, and means for raising the valve from its seat.

(i. in outlet valve mechanism for liquid tanls comprising an outlet having'a valve seat, a valve for said seat, a supporting inem- 

